Aunt May is a well acted character but she isn't the strong person Aunt May is. I'm afraid JMS wonderful' writing of the character ruined anybody else's for me.
Electro is quite fun but a complete jerk. on the other hand the comic character - somebody in green and yellow pyjamas - simple wouldn't have worked.
The kid with the windmill really deserves to die horribly. Think of it as evolution in action.
But it suffers from the Law & Order problem - the rule that whatever happens the only real villain is the middle aged rich, white, businessman.